My sony bluetooth is paired with an old phone and i want to unpair it and use it with my new phone

why? Just pair up the new phone to the device, it should have space for several allowed devices...

You cannot get a bluetooth to pair with something else if it is paired to another item first. Unpair it from the first thing and then press and hold the power button on it until the lights flash, set your new phone to detect new connections and it should find it, the code is 0000

You don't need to unpair it. Turn off the headset. Hold the power/call button to make it discoverable. Add it from your new phone. It usually uses pin 0000 or 1234.

Good luck!

just go to bluetooth or bluetooth settings depending on the phone and drop one or delet the one your not using then pair your iphone

No such thing as unpairing, remember that not all bluetooth devices are compatible. A complete list of phones that are compatible are located on motorola's website, under consumer products, bluetooth. BTW, if you don't know the pin to pair the devices is 0000

try 4444

You may be having compatibility issue instead of what you suspect may be wrong with both your phone and the Bluetooth headset your friend gave you.

Well, there is no such thing as a Bluetooth headset being permanently locked in to a phone.

As long as there is an open 'visible' Bluetooth connection option and there are devices in range ready to pair, the process to pair starts.

Whenever there are incompatibility issues, pairing two devices using Bluetooth becomes a hassle.

did not need to unpair. Just needed to have phone search and use 0000 code.

As Quoted from Arfur - see bold print if you are having problems. You don't need to unpair the other phone, it will unpair itself.:

>Paraphrasing from the manual:
>1. Turn off headset.
>2. Press & hold the Multi-function button for 8 seconds, until >the lower half is lit up blue (not flashing).***THIS IS >IMPORTANT! KEEP HOLDING IT IN UNTIL IT STOPS >FLASHING! The whole thing will be lit up blue, but the lower >half will be brighter.
>3. Set your 'phone to discover bluetooth devices.
>4. Your 'phone will find the "Samsung WEP410" headset, & >ask if you want to pair with it. Confirm by pressing "Yes" or >"OK".
>5. Enter passkey or PIN "0000" (4 zeros), then "Yes" or "OK".

Turn off the bluetooth, then pair up to other devices, or look in other bluetooth devices menu and connect to the device you require